ME 3332 Spring 2011 HW #3 A &B Assigned- Monday, January 31th, 2011 Due- Monday, February 7th, 2011 @ 5:30pm (STSS 220) Source Material: Class Notes and 2.8 and 2.11of “Fundamentals of Fluid Mechanics” by Munson, Young, & Okiishi (5th or 6th edition). Please Show All Work and Follow the Format given on the course website for Type B Problems Type A. Section 2.8 of “Fundamentals of Fluid Mechanics” by Munson, Young, & Okiishi (5th or 6th edition). 1. Compute the location of the centroid, xcand ycfor a trapezoid with dimensions given below: 2. Compute the magnitude of the resultant force, FRon a trapezoid with the dimensions specified in question 1 submerged in a liquid with a density of 1000 kg/m3at an incline of 35o, as shown below. 35o

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3. Consider the exact same situation described in problem A-2, however, replace the trapezoid with a circle with a radius of 3.5 cm. Determine the magnitude of the resultant force acting on the circle, FR, and specify the point on the circle where it acts (center of pressure), yR.

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